Staff Mastery (Ex)

Benefit: The magus can use all his arcana that apply to casting a spell to spells activated from a magic staff. Additionally, any feat that increases the magus’s attack rolls with a quarterstaff also increase his UMD check to activate a magic staff, and any feat that increases the magus’s damage with a quarterstaff also increases the damage dealt to one creature (selected by the magus) effected by any spell activated from a magic staff.